Seong So-min (1921 - November 12, 1982) was a South-Korean actor.
| Movie | Descendants of Cain | Watchman at Seowon station | 1968-06-01 |
| Movie | The International Secret Agent | 1965-07-10 | |
| Movie | An Upstart | Filmmaker | 1961-07-13 |
| Movie | The Evergreen | Unknown | 1961-09-20 |
| Movie | Soil | Han Kim | 1960-01-28 |
| Movie | A Drifting Story | Won Se-jong (Sang-hyeon's middle school classmate) | 1960-12-17 |
| Movie | King Gojong and Martyr An Jung-Geun | Kang Man-guk | 1959-04-10 |
| Movie | A Sister's Garden | Kim Seok-deok (Youngsook's husband) | 1959-10-01 |
| Movie | A Country Girl | Kim Dong-hwan | 1958-10-31 |
| Movie | The Love Marriage | Seungil | 1958-10-14 |
| Movie | The Pure Love | Choi Moon-seon | 1957-11-15 |
| Movie | Palace of Ambition | General Myeongryun | 1957-12-18 |
| Movie | The Youth | 1955-11-30 |